Home / 42,315.08-63,379.03-17,279.21

Finding the Fourth Proportional to 42,315.08, 63,379.03 and 17,279.21

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Solution

The fourth proportional to 42,315.08, 63,379.03 and 17,279.21 is: 25,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,315.08 : 63,379.03 = 17,279.21 : x
  2. Step 2: Convert to fraction form
    42,315.08/63,379.03 = 17,279.21/x
  3. Step 3: Cross multiply
    42,315.08x = 63,379.03 × 17,279.21
  4. Step 4: Simplify right side
    42,315.08x = 1,095,139,568.97
  5. Step 5: Solve for x
    x = 1,095,139,568.97/42,315.08
  6. Step 6: Final answer
    x = 25,880.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.